From a0f3da27b65c4c7acd20cc2ab12c29407206f869 Mon Sep 17 00:00:00 2001
From: Laura Hausmann <laura@hausmann.dev>
Date: Sun, 18 Jun 2023 21:34:22 +0200
Subject: [PATCH] Fix playlist update

---
 AutoTag.cli/AutoTag.cs | 90 ++++++++++++++++++++++--------------------
 1 file changed, 48 insertions(+), 42 deletions(-)

diff --git a/AutoTag.cli/AutoTag.cs b/AutoTag.cli/AutoTag.cs
index 346f7d5..863bf09 100644
--- a/AutoTag.cli/AutoTag.cs
+++ b/AutoTag.cli/AutoTag.cs
@@ -58,54 +58,60 @@ internal static class AutoTag {
 				break;
 			}
 			case FolderType.Playlists: {
-				foreach (var playlist in Directory.GetDirectories(inputDir.Path)) {
-					var tracks = Directory.EnumerateFiles(playlist, "*.*", SearchOption.AllDirectories).Where(IsAllowed).OrderBy(s => s, new AlphanumComparator());
-
-					uint i            = 1;
-					var  trackCount   = tracks.Count();
-					var  playlistName = Path.GetFileName(playlist);
-
-					foreach (var track in tracks) {
-						Console.WriteLine("<- " + track);
-						var tagFile             = TagFile.Create(track);
-						var outputFileDirectory = inputDir.Path == outputDir ? outputDir : Path.Combine(outputDir, "Various Artists", CleanFileName(playlistName));
-						Directory.CreateDirectory(outputFileDirectory);
-
-						var outputFilePath = Path.Combine(outputFileDirectory,
-														  CleanFileName(tagFile.Tag.Performers.Length == 0
-																			? $"{i}. {tagFile.Tag.Title}{Path.GetExtension(track)}"
-																			: $"{i}. {tagFile.Tag.Performers[0]} - {tagFile.Tag.Title}{Path.GetExtension(track)}"));
-
-						tagFile.Save();
-
-						if (inputDir.Path == outputDir)
-							File.Move(track, outputFilePath, true);
-						else
-							File.Copy(track, outputFilePath, true);
-
-						var newTagFile = TagFile.Create(outputFilePath);
-						newTagFile.Tag.Comment      = null;
-						newTagFile.Tag.Genres       = null;
-						newTagFile.Tag.Album        = playlistName;
-						newTagFile.Tag.Track        = i++;
-						newTagFile.Tag.TrackCount   = (uint)trackCount;
-						newTagFile.Tag.AlbumArtists = new[] { "Various Artists" };
-
-						if (newTagFile.Tag.Performers.Length == 0)
-							newTagFile.Tag.Performers = new[] { "Various Artists" };
-
-						newTagFile.Save();
-
-						Console.WriteLine("-> " + outputFilePath);
-						Console.WriteLine();
-					}
-				}
+				if (inputDir.Path == outputDir)
+					ProcessPlaylist(inputDir.Path, inputDir, outputDir);
+				else
+					foreach (var playlist in Directory.GetDirectories(inputDir.Path))
+						ProcessPlaylist(playlist, inputDir, outputDir);
 
 				break;
 			}
 			default: throw new ArgumentOutOfRangeException();
 		}
 	}
+
+	private static void ProcessPlaylist(string playlist, Folder inputDir, string outputDir) {
+		var tracks = Directory.EnumerateFiles(playlist, "*.*", SearchOption.AllDirectories).Where(IsAllowed).OrderBy(s => s, new AlphanumComparator());
+
+		uint i            = 1;
+		var  trackCount   = tracks.Count();
+		var  playlistName = Path.GetFileName(playlist);
+
+		foreach (var track in tracks) {
+			Console.WriteLine("<- " + track);
+			var tagFile             = TagFile.Create(track);
+			var outputFileDirectory = inputDir.Path == outputDir ? outputDir : Path.Combine(outputDir, "Various Artists", CleanFileName(playlistName));
+			Directory.CreateDirectory(outputFileDirectory);
+
+			var outputFilePath = Path.Combine(outputFileDirectory,
+											  CleanFileName(tagFile.Tag.Performers.Length == 0
+																? $"{i}. {tagFile.Tag.Title}{Path.GetExtension(track)}"
+																: $"{i}. {tagFile.Tag.Performers[0]} - {tagFile.Tag.Title}{Path.GetExtension(track)}"));
+
+			tagFile.Save();
+
+			if (inputDir.Path == outputDir)
+				File.Move(track, outputFilePath, true);
+			else
+				File.Copy(track, outputFilePath, true);
+
+			var newTagFile = TagFile.Create(outputFilePath);
+			newTagFile.Tag.Comment      = null;
+			newTagFile.Tag.Genres       = null;
+			newTagFile.Tag.Album        = playlistName;
+			newTagFile.Tag.Track        = i++;
+			newTagFile.Tag.TrackCount   = (uint)trackCount;
+			newTagFile.Tag.AlbumArtists = new[] { "Various Artists" };
+
+			if (newTagFile.Tag.Performers.Length == 0)
+				newTagFile.Tag.Performers = new[] { "Various Artists" };
+
+			newTagFile.Save();
+
+			Console.WriteLine("-> " + outputFilePath);
+			Console.WriteLine();
+		}
+	}
 }
 
 internal class Folder {